the best way to train on any problem is to take their focus off of it. for example. you dont want her "talking" to strangers. have someone walk past and have some treats with you (this is always the best way, unless they are toy fanatics). when she starts to focus on the stranger, say her name and when she acknowleges you, treat her. do this over and over for a week or so... also a great way to teach the "come" command.
just a quick thought. i know it worked with my 2.. and my youngest is only 4 months
(still a working progress :P)